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Cheap flights from Toronto Region of Waterloo Intl Airport to the United States from C$ 171

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
YKF — LAX
24 May — 31 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Region of Waterloo Intl to USA

Enter your travel dates to find the best prices.

Cheapest flights from Region of Waterloo Intl to USA
Explore the most affordable flight options available from Region of Waterloo Intl to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 April 2026.

Wed 10/68:40 p.m.
YKF
-
LAS
2 stops22h 55m
WestJet
Mon 15/68:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 18/4C$ 279
Sun 7/68:40 p.m.
YKF
-
LAS
2 stops18h 50m
WestJet
Sun 14/68:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 23/4C$ 280
Thu 4/68:40 p.m.
YKF
-
LAS
1 stop28h 00m
WestJet
Sat 13/68:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 20/4C$ 285
Fri 12/68:40 p.m.
YKF
-
LAS
1 stop17h 00m
WestJet
Mon 15/68:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 20/4C$ 290
Fri 8/58:40 p.m.
YKF
-
LAS
1 stop17h 00m
WestJet
Mon 11/58:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 21/4C$ 291
Fri 19/68:40 p.m.
YKF
-
LAS
1 stop23h 35m
WestJet
Mon 22/68:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 21/4C$ 293
Fri 5/68:40 p.m.
YKF
-
LAS
1 stop23h 35m
WestJet
Fri 12/68:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 20/4C$ 294
Fri 5/68:40 p.m.
YKF
-
LAS
1 stop23h 35m
WestJet
Mon 8/68:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 21/4C$ 295
Thu 11/68:40 p.m.
YKF
-
LAS
2 stops18h 50m
WestJet
Sat 20/68:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 21/4C$ 297
Sun 7/68:40 p.m.
YKF
-
LAS
2 stops18h 50m
WestJet
Sat 13/68:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Deal found 20/4C$ 298
Mon 15/68:40 p.m.
YKF
-
SEA
1 stop25h 05m
WestJet
Wed 24/67:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Deal found 20/4C$ 368
Tue 9/68:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Sun 14/67:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Deal found 19/4C$ 369

Find flight deals from Region of Waterloo Intl to USA

Keep the following information in mind while searching for Region of Waterloo Intl to USA flight deals. Data was last updated 24 April 2026.

Round-trip from

C$ 279

One-way from

C$ 171

Popular in

December

Cheapest in

September

Average price

C$ 378

Good one-way deal

C$ 175 or less
WestJet
  • WestJet
  • 10/6-15/6
  • 3 total stops
  • 31h 15m total
  • Toronto to USA
Search Deals
WestJet
  • WestJet
  • 9/6
  • 2 total stops
  • 18h 50m total
  • Toronto to USA
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way flight from Toronto Region of Waterloo Intl to USA.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Region of Waterloo Intl to USA that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 24 April 2026.
Use the filters below to find and compare flights from Toronto Region of Waterloo Intl Airport to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Thu 4/6

8:40 p.m.-9:40 p.m.

1 stop28h 00m

Las Vegas Harry Reid Intl

Fri 12/6

8:30 a.m.-7:50 p.m.

1 stop8h 20m

C$ 293

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Fri 19/6

8:40 p.m.-5:15 p.m.

1 stop23h 35m

Las Vegas Harry Reid Intl

Mon 22/6

8:30 a.m.-7:50 p.m.

1 stop8h 20m

C$ 293

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Fri 12/6

8:40 p.m.-10:40 a.m.

1 stop17h 00m

Las Vegas Harry Reid Intl

Sat 20/6

8:30 a.m.-7:50 p.m.

1 stop8h 20m

C$ 298

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Fri 19/6

8:40 p.m.-5:15 p.m.

1 stop23h 35m

Las Vegas Harry Reid Intl

Sun 21/6

8:30 a.m.-7:50 p.m.

1 stop8h 20m

C$ 302

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Sun 14/6

8:40 p.m.-5:15 p.m.

1 stop23h 35m

Las Vegas Harry Reid Intl

Mon 22/6

8:30 a.m.-7:50 p.m.

1 stop8h 20m

C$ 304

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Mon 1/6

8:40 p.m.-12:30 p.m.

2 stops18h 50m

Las Vegas Harry Reid Intl

Thu 4/6

5:35 p.m.-7:50 p.m.

2 stops23h 15m

C$ 342

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Fri 19/6

8:40 p.m.-5:15 p.m.

1 stop23h 35m

Las Vegas Harry Reid Intl

Thu 25/6

6:10 p.m.-7:50 p.m.

1 stop22h 40m

C$ 354

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Fri 12/6

8:40 p.m.-9:40 p.m.

1 stop28h 00m

Las Vegas Harry Reid Intl

Tue 16/6

6:10 p.m.-7:50 p.m.

1 stop22h 40m

C$ 358

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Tue 2/6

8:40 p.m.-5:15 p.m.

1 stop23h 35m

Las Vegas Harry Reid Intl

Thu 11/6

6:10 p.m.-7:50 p.m.

1 stop22h 40m

C$ 358

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Tue 9/6

8:40 p.m.-12:30 p.m.

2 stops18h 50m

Las Vegas Harry Reid Intl

Sat 13/6

8:30 a.m.-7:50 p.m.

1 stop8h 20m

C$ 367

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from Region of Waterloo Intl to USA

Have a flexible travel schedule? Discover the best time to fly to USA from Region of Waterloo Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Toronto Region of Waterloo Intl Airport to the United States

What is the cheapest month to book a flight from Toronto Region of Waterloo Intl Airport to USA?

Currently, January is the cheapest month in which you can book a flight from Toronto Region of Waterloo Intl Airport to USA (average of C$ 82). Flying from Toronto Region of Waterloo Intl Airport to USA in March is currently the most expensive (average of C$ 259). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How often are flights from Toronto to the United States delayed?

About 23% of weekly flights between Toronto and United States have experienced delays in the past year, with the average delay time being 108 minutes.

What is the most punctual flight time for Toronto to the United States flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Toronto to the United States flights?

Over the past year, Flair Airlines has had the lowest number of delays on this route, with just 22% of flights being delayed.

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to USA. Reviews last updated 24 April 2026.
Check out reviews from past customers who have flown with WestJet and Air Canada from Toronto Region of Waterloo Intl Airport to the United States to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,325 reviews
Check prices

Crew

7.9

Overall

7.2

Comfort

7.0

Boarding

7.4

Entertainment

6.1

Food

6.2

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
WestJet
7.2
Good
3,325 reviews
WestJet
7.2
Good
3,325 reviews
Check prices

Crew

7.9

Overall

7.2

Comfort

7.0

Boarding

7.4

Entertainment

6.1

Food

6.2

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
Air Canada
7.1
Good
10,961 reviews
WestJet
7.2
Good
3,325 reviews
Check prices

Crew

7.9

Overall

7.2

Comfort

7.0

Boarding

7.4

Entertainment

6.1

Food

6.2

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

Related info for your journey

Find useful and relevant information for your journey from Region of Waterloo Intl to USA. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Toronto Region of Waterloo Intl Airport to USA?

    Airlines like WestJet fly from Toronto Region of Waterloo Intl Airport to USA in about 28h. The time it takes to get you to your destination can typically vary by up to . The distance from Toronto Region of Waterloo Intl Airport to USA is about 3056 km.

  • What are the most popular routes from Toronto Region of Waterloo Intl Airport to USA?

    Most travellers choose Toronto Region of Waterloo Intl - Las Vegas Harry Reid Intl, Toronto Region of Waterloo Intl - Los Angeles or Toronto Region of Waterloo Intl - San Francisco when deciding on the best route from Toronto Region of Waterloo Intl Airport to USA.

  • Can I find deals for flights from Region of Waterloo Intl to USA that include hotel bookings?

    Yes. In addition to deals on Region of Waterloo Intl to USA flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Region of Waterloo Intl to USA?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Region of Waterloo Intl to USA.

  • Can I find deals for business class flights from Region of Waterloo Intl to USA?

    Yes. Cheapflights offers flight deals from Region of Waterloo Intl to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Toronto Region of Waterloo Intl Airport to USA?

    Currently, January is the cheapest month in which you can book a flight from Toronto Region of Waterloo Intl Airport to USA (average of C$ 82). Flying from Toronto Region of Waterloo Intl Airport to USA in March is currently the most expensive (average of C$ 259). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Region of Waterloo Intl to USA

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Region of Waterloo Intl to USA

Discover the top 2 airlines that operate flights from Region of Waterloo Intl to USA. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 24 April 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 156AverageC$ 328FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 167AverageC$ 417FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Region of Waterloo Intl to USA?

Cheapflights makes it easy to find Region of Waterloo Intl to USA flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Region of Waterloo Intl to USA?

Millions of users choose and trust Cheapflights to book the best flight deals from Region of Waterloo Intl to USA for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Region of Waterloo Intl to USA with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Region of Waterloo Intl to USA, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Region of Waterloo Intl to USA become cheaper?

Yes, Cheapflights offers price alerts on Region of Waterloo Intl to USA flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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